268 lines
8.8 KiB
PHP
268 lines
8.8 KiB
PHP
<?php
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namespace Pterodactyl\Services\Eggs;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Str;
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use Pterodactyl\Models\Server;
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use Pterodactyl\Contracts\Repository\EggRepositoryInterface;
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use Pterodactyl\Services\Servers\ServerConfigurationStructureService;
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class EggConfigurationService
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{
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private const NOT_MATCHED = '__no_match';
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/**
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* @var \Pterodactyl\Contracts\Repository\EggRepositoryInterface
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*/
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private $repository;
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/**
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* @var \Pterodactyl\Services\Servers\ServerConfigurationStructureService
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*/
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private $configurationStructureService;
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/**
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* EggConfigurationService constructor.
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*
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* @param \Pterodactyl\Contracts\Repository\EggRepositoryInterface $repository
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* @param \Pterodactyl\Services\Servers\ServerConfigurationStructureService $configurationStructureService
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*/
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public function __construct(
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EggRepositoryInterface $repository,
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ServerConfigurationStructureService $configurationStructureService
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) {
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$this->repository = $repository;
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$this->configurationStructureService = $configurationStructureService;
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}
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/**
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* Return an Egg file to be used by the Daemon.
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*
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* @param \Pterodactyl\Models\Server $server
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* @return array
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*
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* @throws \Pterodactyl\Exceptions\Repository\RecordNotFoundException
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*/
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public function handle(Server $server): array
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{
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$configs = $this->replacePlaceholders(
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$server, json_decode($server->egg->inherit_config_files)
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);
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return [
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'startup' => $this->convertStartupToNewFormat(json_decode($server->egg->inherit_config_startup, true)),
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'stop' => $this->convertStopToNewFormat($server->egg->inherit_config_stop),
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'configs' => $configs,
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];
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}
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/**
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* Convert the "done" variable into an array if it is not currently one.
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*
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* @param array $startup
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* @return array
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*/
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protected function convertStartupToNewFormat(array $startup)
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{
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$done = Arr::get($startup, 'done');
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return array_filter([
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'done' => is_string($done) ? [$done] : $done,
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'user_interaction' => Arr::get($startup, 'userInteraction'),
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], function ($datum) {
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return ! is_null($datum);
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});
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}
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/**
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* Converts a legacy stop string into a new generation stop option for a server.
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*
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* For most eggs, this ends up just being a command sent to the server console, but
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* if the stop command is something starting with a caret (^), it will be converted
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* into the associated kill signal for the instance.
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*
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* @param string $stop
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* @return array
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*/
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protected function convertStopToNewFormat(string $stop): array
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{
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if (! Str::startsWith($stop, '^')) {
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return [
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'type' => 'command',
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'value' => $stop,
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];
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}
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$signal = substr($stop, 1);
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if (strtoupper($signal) === 'C') {
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return [
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'type' => 'stop',
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'value' => null,
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];
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}
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return [
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'type' => 'signal',
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'value' => strtoupper($signal),
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];
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}
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/**
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* @param \Pterodactyl\Models\Server $server
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* @param object $configs
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* @return array
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*
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* @throws \Pterodactyl\Exceptions\Repository\RecordNotFoundException
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*/
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protected function replacePlaceholders(Server $server, object $configs)
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{
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// Get the legacy configuration structure for the server so that we
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// can property map the egg placeholders to values.
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$structure = $this->configurationStructureService->handle($server, true);
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foreach ($configs as $file => &$data) {
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$this->iterate($data->find, $structure);
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}
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$response = [];
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// Normalize the output of the configuration for the new Wings Daemon to more
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// easily ingest, as well as make things more flexible down the road.
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foreach ($configs as $file => $data) {
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$append = ['file' => $file, 'replace' => []];
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// I like to think I understand PHP pretty well, but if you don't pass $value
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// by reference here, you'll end up with a resursive array loop if the config
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// file has two replacements that reference the same item in the configuration
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// array for the server.
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foreach ($data as $key => &$value) {
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if ($key !== 'find') {
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$append[$key] = $value;
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continue;
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}
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foreach ($value as $find => $replace) {
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if (is_object($replace)) {
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foreach ($replace as $match => $replaceWith) {
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$append['replace'][] = [
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'match' => $find,
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'if_value' => $match,
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'replace_with' => $replaceWith,
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];
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}
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continue;
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}
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$append['replace'][] = [
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'match' => $find,
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'replace_with' => $replace,
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];
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}
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}
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$response[] = $append;
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}
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return $response;
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}
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/**
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* @param string $value
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* @param array $structure
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* @return string|null
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*/
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protected function matchAndReplaceKeys(string $value, array $structure): ?string
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{
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preg_match('/{{(?<key>.*)}}/', $value, $matches);
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if (! $key = $matches['key'] ?? null) {
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return self::NOT_MATCHED;
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}
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// Matched something in {{server.X}} format, now replace that with the actual
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// value from the server properties.
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//
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// The Daemon supports server.X, env.X, and config.X placeholders.
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if (! Str::startsWith($key, ['server.', 'env.', 'config.'])) {
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return self::NOT_MATCHED;
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}
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// The legacy Daemon would set SERVER_MEMORY, SERVER_IP, and SERVER_PORT with their
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// respective values on the Daemon side. Ensure that anything referencing those properly
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// replaces them with the matching config value.
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switch ($key) {
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case 'config.docker.interface':
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$key = 'config.docker.network.interface';
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break;
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case 'server.build.env.SERVER_MEMORY':
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case 'env.SERVER_MEMORY':
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$key = 'server.build.memory';
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break;
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case 'server.build.env.SERVER_IP':
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case 'env.SERVER_IP':
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$key = 'server.build.default.ip';
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break;
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case 'server.build.env.SERVER_PORT':
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case 'env.SERVER_PORT':
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$key = 'server.build.default.port';
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break;
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}
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// We don't want to do anything with config keys since the Daemon will need to handle
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// that. For example, the Spigot egg uses "config.docker.interface" to identify the Docker
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// interface to proxy through, but the Panel would be unaware of that.
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if (Str::startsWith($key, 'config.')) {
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return preg_replace('/{{(.*)}}/', "{{{$key}}}", $value);
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}
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// Replace anything starting with "server." with the value out of the server configuration
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// array that used to be created for the old daemon.
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if (Str::startsWith($key, 'server.')) {
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$plucked = Arr::get(
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$structure, preg_replace('/^server\./', '', $key), ''
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);
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return preg_replace('/{{(.*)}}/', $plucked, $value);
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}
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// Finally, replace anything starting with env. with the expected environment
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// variable from the server configuration.
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$plucked = Arr::get(
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$structure, preg_replace('/^env\./', 'build.env.', $key), ''
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);
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return preg_replace('/{{(.*)}}/', $plucked, $value);
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}
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/**
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* Iterates over a set of "find" values for a given file in the parser configuration. If
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* the value of the line match is something iterable, continue iterating, otherwise perform
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* a match & replace.
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*
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* @param mixed $data
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* @param array $structure
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*/
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private function iterate(&$data, array $structure)
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{
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if (! is_iterable($data) && ! is_object($data)) {
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return;
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}
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foreach ($data as &$value) {
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if (is_iterable($value) || is_object($value)) {
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$this->iterate($value, $structure);
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continue;
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}
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$response = $this->matchAndReplaceKeys($value, $structure);
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if ($response === self::NOT_MATCHED) {
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continue;
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}
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$value = $response;
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}
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}
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}
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